356640133 has 2 divisors, whose sum is σ = 356640134. Its totient is φ = 356640132.

The previous prime is 356640107. The next prime is 356640149. The reversal of 356640133 is 331046653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234028804 + 122611329 = 15298^2 + 11073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-356640133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 356640095 and 356640104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (356640733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178320066 + 178320067.

It is an arithmetic number, because the mean of its divisors is an integer number (178320067).

Almost surely, 2^356640133 is an apocalyptic number.

It is an amenable number.

356640133 is a deficient number, since it is larger than the sum of its proper divisors (1).

356640133 is an equidigital number, since it uses as much as digits as its factorization.

356640133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 356640133 is about 18884.9181359094. The cubic root of 356640133 is about 709.1586496274.

Adding to 356640133 its reverse (331046653), we get a palindrome (687686786).

The spelling of 356640133 in words is "three hundred fifty-six million, six hundred forty thousand, one hundred thirty-three".